In combination with an industrial vacuum cleaner worth the money
Compared to a spatula no comparison. Much more grip and power with the scraper. I deducted with a blade an 18 foot boat with 2 layers antifouing and 1er layer primer in about 5 hours. Went perfect in conjunction with the "Yachtcare Antifouling Stripper". I did not try to dry dry an antifouling (is that possible? Uuii, the sound!). That may work with a household vacuum cleaner. With pretreatment by means of a stripper without suction connection with a reasonable performance (industrial puller), the scaper can not be used efficiently. Then glue the opening and blade immediately, and then you have to rewrap the paint constantly. Conclusion use dry - no idea, not tried. Use "wet" - only in conjunction with an industrial vacuum cleaner super efficient.